XPS 15 9500 Falling apart

So I have had the Dell XPS 15 9500 for over a year at this point and overall I'm quite satisfied with it. However, it feels like these past few days it is slowly falling apart as I am having a small list of problems that I don't know if they are related or not.

Firstly when on battery power, the laptop will immediately restart after booting (say after 1-10 seconds), so I can either be in the login screen and it will restart immediately or it will go past the login and then restart.

Then I start having problems with the Netflix app that will only stream 4k content after I plug in/out an external monitor.

Finally, after turning on the laptop now I realized it wasn't charging as it didn't recognize the charger (which is the official charger that came with the laptop). After turning it off, plugging out/in the charger, and booting it, it charges normally).

As for the specs I have the model with the i7-10750H Intel CPU, 32GB RAM, 1TB SSD, and the BIOS version is 1.12.0. All drivers are up to date, similar to the Windows Updates